All Sand on Earth Could Be Made of Star Stuff

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According to (This article and its images were originally posted on Scientific American Content January 8, 2019 at 08:00AM.)

Astronomers have long argued that the phrase “we are stardust” is more than poetic language. Now new evidence adds another stanza to this great cosmic verse.

Dust from silica—a common component of Earth’s core, sandy beaches, concrete, glass and even cell phones—has been detected within the remnants of two supernovae in the Milky Way galaxy. These observations, described last October in Monthly Notices of the Royal Astronomical Society, provide the first evidence that silica originated within exploding stars.

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This article and images were originally posted on [Scientific American Content] January 8, 2019 at 08:00AM. Credit to the original author and Scientific American Content | ESIST.T>G>S Recommended Articles Of The Day.

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